Now IPNS is a thing. Months ago it just didn't work, at least for me, now something is happening in the way IPNS works.
IPNS is essentially DNS over the IPFS network. IPNS domains point to a specific IPFS file (or a set of files, like we see here). IPNS domains are signed with a private key; when you want to update your IPNS entry, you add your new content to a new IPFS file and then you update the IPNS entry by signing it with a public key.